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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 'use strict'; | 5 'use strict'; |
6 | 6 |
7 <include src="../../../../ui/webui/resources/js/util.js"> | 7 <include src="../../../../ui/webui/resources/js/util.js"> |
8 <include src="open_pdf_params_parser.js"> | 8 <include src="open_pdf_params_parser.js"> |
9 <include src="pdf_scripting_api.js"> | 9 <include src="pdf_scripting_api.js"> |
10 <include src="viewport.js"> | 10 <include src="viewport.js"> |
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162 | 162 |
163 PDFViewer.prototype = { | 163 PDFViewer.prototype = { |
164 /** | 164 /** |
165 * @private | 165 * @private |
166 * Handle key events. These may come from the user directly or via the | 166 * Handle key events. These may come from the user directly or via the |
167 * scripting API. | 167 * scripting API. |
168 * @param {KeyboardEvent} e the event to handle. | 168 * @param {KeyboardEvent} e the event to handle. |
169 */ | 169 */ |
170 handleKeyEvent_: function(e) { | 170 handleKeyEvent_: function(e) { |
171 var position = this.viewport_.position; | 171 var position = this.viewport_.position; |
172 var viewport = this.viewport_; | |
raymes
2014/09/15 00:12:14
nit: remove this line and just add ".bind(this) be
Nikhil
2014/09/16 10:23:29
Done.
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172 // Certain scroll events may be sent from outside of the extension. | 173 // Certain scroll events may be sent from outside of the extension. |
173 var fromScriptingAPI = e.type == 'scriptingKeypress'; | 174 var fromScriptingAPI = e.type == 'scriptingKeypress'; |
174 | 175 |
175 var pageUpHandler = function() { | 176 var pageUpHandler = function() { |
176 // Go to the previous page if we are fit-to-page. | 177 // Go to the previous page if we are fit-to-page. |
177 if (this.viewport_.fittingType == Viewport.FittingType.FIT_TO_PAGE) { | 178 if (viewport.fittingType == Viewport.FittingType.FIT_TO_PAGE) { |
178 this.viewport_.goToPage(this.viewport_.getMostVisiblePage() - 1); | 179 viewport.goToPage(viewport.getMostVisiblePage() - 1); |
179 // Since we do the movement of the page. | 180 // Since we do the movement of the page. |
180 e.preventDefault(); | 181 e.preventDefault(); |
181 } else if (fromScriptingAPI) { | 182 } else if (fromScriptingAPI) { |
182 position.y -= this.viewport.size.height; | 183 position.y -= this.viewport.size.height; |
183 this.viewport.position = position; | 184 this.viewport.position = position; |
184 } | 185 } |
185 }; | 186 }; |
raymes
2014/09/15 00:12:14
}.bind(this);
Nikhil
2014/09/16 10:23:29
Done.
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186 var pageDownHandler = function() { | 187 var pageDownHandler = function() { |
187 // Go to the next page if we are fit-to-page. | 188 // Go to the next page if we are fit-to-page. |
188 if (this.viewport_.fittingType == Viewport.FittingType.FIT_TO_PAGE) { | 189 if (viewport.fittingType == Viewport.FittingType.FIT_TO_PAGE) { |
189 this.viewport_.goToPage(this.viewport_.getMostVisiblePage() + 1); | 190 viewport.goToPage(viewport.getMostVisiblePage() + 1); |
190 // Since we do the movement of the page. | 191 // Since we do the movement of the page. |
191 e.preventDefault(); | 192 e.preventDefault(); |
192 } else if (fromScriptingAPI) { | 193 } else if (fromScriptingAPI) { |
193 position.y += this.viewport.size.height; | 194 position.y += this.viewport.size.height; |
194 this.viewport.position = position; | 195 this.viewport.position = position; |
195 } | 196 } |
196 }; | 197 }; |
raymes
2014/09/15 00:12:14
}.bind(this);
Nikhil
2014/09/16 10:23:29
Done.
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197 | 198 |
198 switch (e.keyCode) { | 199 switch (e.keyCode) { |
199 case 32: // Space key. | 200 case 32: // Space key. |
200 if (e.shiftKey) | 201 if (e.shiftKey) |
201 pageUpHandler(); | 202 pageUpHandler(); |
202 else | 203 else |
203 pageDownHandler(); | 204 pageDownHandler(); |
204 return; | 205 return; |
205 case 33: // Page up key. | 206 case 33: // Page up key. |
206 pageUpHandler(); | 207 pageUpHandler(); |
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568 | 569 |
569 /** | 570 /** |
570 * @type {Viewport} the viewport of the PDF viewer. | 571 * @type {Viewport} the viewport of the PDF viewer. |
571 */ | 572 */ |
572 get viewport() { | 573 get viewport() { |
573 return this.viewport_; | 574 return this.viewport_; |
574 } | 575 } |
575 }; | 576 }; |
576 | 577 |
577 var viewer = new PDFViewer(); | 578 var viewer = new PDFViewer(); |
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